On-line diagnostics of high-voltage bushings and current transformers using the sum current method

Authors
Lachman, MF Walter, W von Guggenberg, PA
Citation
Mf. Lachman et al., On-line diagnostics of high-voltage bushings and current transformers using the sum current method, IEEE POW D, 15(1), 2000, pp. 155-162
Citations number
6
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON POWER DELIVERY
ISSN journal
08858977 → ACNP
Volume
15
Issue
1
Year of publication
2000
Pages
155 - 162
Database
ISI
SICI code
0885-8977(200001)15:1<155:ODOHBA>2.0.ZU;2-2
Abstract
Experience with the application of the sum current method to on-line diagno stics of high-voltage bushings and current transformers is presented. The m ethod and analysis are described along with field experience obtained at fo urteen substations, comprising 56 sets of (three) bushings and current tran sformers. The influences of temperature, humidity and changes in more than one bushing are discussed.